Planing machine



May 12, 1925. 1,537,143

F. scHuLDEs PLANING MACHINE May 12, 1925.

F. scHuLDEs PLANING MACHINE Filed Aug. 20, 1924 4 Sheets-Sheet 2 5mm/nto@ Trang? Schuldes WMM@ vl f May l2, 1925.

F. scHuLDEs LANING MACHINE A Filed Aug. zo, 1924 4 Sheets-Shes'c 3 @3x3 hin @1MM/umg 7/71 May 12, 1925. 1,537,143

F. SCHULDES PLANING MACHINE Filed Aug. 20, 1924. 4 Sheets-Sheet 4 nvmvco'c ,Franz Sc7zu-Ldes Patented May 12, 1925.

UNITED STATES PATENT OFFICE.

FRANZ soHULnEs, `or YORK, n.

'PLANING MACHINE.

Application led August 20, 1924. Serial No. 733,101. i

To all whom t may concern.'

Be it known that I, FRANZ SCHULDES, a citizen of the United States, residing at New York, in the county of'New York and State of New York, have invented certain new and useful Improvements in Planing Machines..

of which thefollowing is a specification.

This invention relates to improvements'in planing machines, particularly machines for automatically leveling comparatively wide surfaces of wood by cutting consecutive sweeps of a predetermined width thereon.

It is the principal object of the invention to provideL such a planing machine with means for `positively advancing 'the cutting y or planing tool or tools for apredetermmed distance after each` operation, and to pery form its operation in a positive andefhcient ple and inexpensive a stroke.

These and other `objects of my invention will become more4 fully known as the description thereofproceeds. and will then be specifically pointed out v in. the appended.

claims.`

In the accompanying drawing` formingk a material 'part of' this-disclosurez.- Figure 1 is a top plan View of a planing machine constructed in accordance with the present invention.

Figure 2 is a front elevation thereof. Figure 3is a longitudinal vertical section on line' 3-3 of Figure 1. l l

Figure 4 isla section on line 4`4 of Figf ure 3. l K l Figure 5 is a partial endelevation seen in ther direction ofthe arrow '5Figure 1.

Figure' is a front shownin. Figure `5. y y l i i Figure 7 an enlargedz detail' view ofthe clutch 'mechanism in approximately the cen? ter ofFigure 2.

Figure/:8 is a fragmentary^ top plan vie-w ofthe front end ofthe oscillating arm.

A Istationary divided niachinev bed 10 car-f the machine `framey riesthe uprights '11 of kthe bearings 25 and In the forward elevation of the parts i connected by lower cross-bars12, and an upper beam 13. The upper faces fof the parts of the bed 10 are provided with guide.

grooves inwhich ridges 4or ribs 14 on the underside of a'carriage 15 are guided to carry the work-piece 16held thereon in any suitable manner to be engaged by a planing tool'17 adapted to sweep in consecutive arcs over the surface of the work-piece. In orderY to effect a reciprocation of the carriage, the side edges thereof carry r-racks 18 engaged by the teeth` of operatingwheels, as willl hereafter be more fully described.

The beam 13 carries, at its upperface near one yend 2O of which which` a. belt 22 isguided which is also guided over a pulley 2'3on a vert-ical shaft 24 revolving in an upper bearing 25 resting withits fiange on vbeam 13. rIhe lower end of shaft 24revolves in a bearing 26 in the machine frame part 27` Intermediate its thereof, a motor 19,the shaft ends, shaft '24'revolves in a bearing 28 'in part`29 of the machine frame. and between 28, the shaft carries an enlarged part 30 equipped with an exterior worm'31.

Upon shaft 24 neark its lower end, and

between bearings 26 and 28 is fulcrumed an voscillative arm composed as shown, of an upper member 32 and lower member 3.

supported the spindle 34 of the cutting or planing tools 35, 36. The spindle 34 is rotated from shaft 24 at ank increased `speed by means of a belt 37 I 38 on .shaft 24 and a `pulley 39011 spindle 34. The spindle, 34 is heldin its, conical bearings ,by a plate 40 longitudinally eX- tendin'g on the front .part of'arm 32.

In lbrackets 42 secured to the lower face .ofbeam 13, a shaft 43 is journalled which 'carriesaworm wheel 44 in mesh with the worm 31 of the shaft'24 and near its opposite end shaft 43 carries a sprocketv wheel 44a over which a chain 45 is guided which isv trained overa sprocket wheel 46 on a shaft 47 for a purpose hereafter more fully tol be described. 'l

An arml 48 projecting'from the sides of the. beam 13 carries, a transverse shaft 49V, the ends of which arejournalled inv the upper ends of brackets 50, 51 in the machine frame. Neark its ends thevshafty 49 carries bevel gears 52 and 53 in.V mesh with. bevel carries a belt pulley 21 overy end of the arms 32-33, is,

guided over a pulleyA so 'A loo gears 54' and 55 on top of vertical shafts y s effected from the motor 167` and wound upon a and 69 journalled in the machine frame,

- carry n tio-n is such that when the levery 79 is low.

means of the sprocket wheel and the chain 61 guided over a sprocket wheel 62 on shaft 47.

The arms 3Q, are oscillated by means of a pair of cables 63, 64 attached, at their inner end, to an eye 65 `securedto the outer end of arm The opposite ends of these cables are run around guide rollers 66 and pair of arbore 68 and alternately rotated in the following manner The rotation of the power shaft 47 is driven shaft 24 by connections. The shaft 70 and has the the labove described 47 revolves with a spindle form of a sleeve to the end of which is slidably connected, by a key and slot a clutch member 71 cooperating with another clutch member 72.

This second clutch member is adapted to turn arbor 68 by gear transmission 7 3. The opposite end of the shaft 47 is arranged to rotate arbor 69, the construction being suoli, that when one clutch 71, 72 is opened, the other clutch is closed. as illustrated in Figure 1 in which the right hand clutch is shown closed, and the left hand clutch is open. An operating arm 74 has adjustably attached thereto, as at 75, an operating lever 76 carrying a weight 77, at its upper end, and the arm 74 carries fingers 78 which operatively engage the `clutch members 71. i

n order to cause arm to dwell for a short time at the end of each stroke, the following mechanism is provided tv some distance below arbors 68 and69 levers 79 carrying weights 80 are pivoted in brackets 81 of the machine frame normally supporting slotted links 82, to the upper end of which are pivotally connected links 83, the lower ends of which are weightedas at S4, and

rollers S5 on shafts 86. The construcered as indicated in Figure the rope 64 will be relaxed, or in other words, the path.

of the rope will be shorter when thev arm or lever 79is raised, than when itis lowered. The shaft 86 carries a pointer 87 and is vertically movable in a longitudinal slot S8 of a dial 89 bearing graduations on its outer face, as illustrated in Figure al- ,Y lowing an adjustment of the width of the pin 103, carried sweep to be cut. by the tool in the workpiece. The levers7 9 have eyes 90 in which the outer ends of wires 91 are secured. The inner ends of the wires 91 are fastened to a at the ends of pairs of links 102, one pair of which is pivoted to raised portions 'ofthe frame and the other pair:

provided with pins engaging in slots in the opposite end of the same raised portion of the frame. The other ends of the wires have pivo'tally connected thereto links 93 pivotally secured at. their opposite ends to the lower end of operating lever 76, which is provided near this aoint with a curved slot 94 in which a pin 95 travels in order to limit the movements of the operating lever. ,K

To impart an intermittent step by step movement to the carriage ,15, the wheel 62 is mounted on a coupling sleeve 97 cooperative with another coupling member 9S on, shaft 70. A bracket carries a bell-crank lever 99 at its upper end, one arm of which is attached to sleeve 97, while its other arm is engaged by a lever 100 pivoted in the lower part of the same bracket.

The engagement and disengagement of the coupling is effected by a curved arm 101 attached 'to the lever 100 at one of its ends and the link 109J at its opposite end, the pin 103 around which the wire 91 is wound, is engaged by another `wire guidedover ,a roller 104 and carries a weight 105.

In operation, the machine 1oeing supplied with an article to be planed, the motor is started and theleafter the entire fame is advanced, intermittently, at the ends of the stroke of thecutter carrying arm, the details of the operatingV mechanism having been previously given. Y

Changes may be made in the general arrangement and in the construction of the minor details of the invention without departing from the scope as laid down in the claims.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent, is

1. In a planing machine` a carriage for the lwork-piece, a means for imparting a timed step by step movement to said carriage, an oscillating tool carrier, means for effecting a temporary stopping of said carrier at the stroke-terminals at which time the carriage' movement takes place, and means for regulating the length of the sweep of the tool. y

2. In a planing machine, a carriagev for the work-piece, racks on both side edges of said carriage, means in engagement with said racks to move said carriage cooperative, means for imparting to said rack en-v Ya carriage for an oscillating arm fulend to the kmachine frame,

levers,

means at the opposite end of said arm to positively move said arm to the end of a work-piece adjustably held on said carriagesv an adjustment of ythe means for allowino' tools carried by said arm to a predetermined lengthof sweep', and means for rotating said tool.

l. In a planing machine, a carriage for the work-piece, means for imparting to said carriagey an intermittent forward motion, an oscillating tool carrying arm, pair of arbor Wires connecting the tool carrying arm with said arbors, rotating said arbors, and means for slackening said Wires for causing the-tool carrying arm to dwell for a short time at the end of its stroke. n

5. In a planing machine, a carriage for the Work-piece, means for imparting to said carriage an intermittent forward motion, a tool carrying means for guiding the tools carried by the carrier acrossthe Work-piece to cut a sweep of predetermined length in the Work-piece ron said carrier, a pair of arbors journalled in the frame, cables connecting said arbors with said tool carrier, clutch members interchangeablel with said arbors and an operating lever for operating said clutches toactuatethe tool carrier on one' and the other side of the machine.

6. In a planing machine, a carriage for the Work-piece, an oscillating arm fulcrumed in the machine frame at one end, a tool 'carrier at the opposite end of said arm, a plurality of tools carriedby said carrier, an operating lever, a pair of levers operated by said first named lever, a lclutch controlled by said said tools with the Work-piece.

7. In a planing machine, a frame, an roscillating arm fulcrumed theretoa` power shaft, an oscillating arm, means for coumeans for alternately y one, and means and means for positively engaging pling said arm to said power shaft, an operating lever adapted to operate said coupling means,'tools carried by said oscillating' arm, and means allowing an adjustment of the sweep of said tools over the Work` piece to a predetermined length. A

In a planing machine, a Weighted operating lever, means for limiting the movement of said lever inany direction, a pair of arbors, an oscillating arm, cables connecting said arm With said shafts or arbors, a pair of links pivotally connected to the lower end of said operating lever, links pivoted intermediate their ends to the machineframe and to said first named links, and Wires connecting said last named links to said arbors and Wire. 9. In a planing machine, an oscillating tool carrier arm, arbors in the machine frame, cables connecting said tool carrier arm With said arbors,

10. In a planing machine, a tool carrier, aA

carriage for the Work-piece beneath said carrier, means for imparting to said carriage a step yby step motion, a motor and shaft Arotated thereby, a power shaft, a coupling on said shaftvfor coupling the motor with said carriage, a bell-crank lever attached to one member of said coupling, a second bell-crank lever engaged by said iirstfor operating said bellcrank levers and mittently coupling said carriage to the motor. Y

In wit-ness whereof I have aixed my signature. i FRANZk SCHULDES.

a floating roller over `Which said Wire 1s guided, apointer on the coupling members inter-y 

